Improvement in curtain-fixtures



UNITED STATES PATENT QEEICE CHAUNCEY BUCKLEY AND LODOWICK L. SAVY ER, OFMFRIDEU, CNN.

IMPROVEMENT IN CURTAIN-FIXTURES.

Specification forming part of Letters Patent N0. 147,099, dated February3, 1874; application ilul October 1, 1873.

To all who-m 'it may conce-rn Be it known that we, GHAUNCEY BUCKLEY andLODOWICK L. SAWYER, of llileriden, in the county of N ew Ha 'en andState of Connecticut, have invented a new Improvement inCurtain-Fixtln'es; and we do hereby decla-re the following', when takenin connection with the accompanying drawings and the letters ofreference marked thereon, to be a full, clear, and 'exact description ofthe same, and which said drawings constitute part of this specification,and represent, in-

Figure 1, a view of a portion of a windowfralne, showing the applicationof the shade thereto Fig. 2, a side view of one end of the roll with themechanism attached; Fig. 3, a longitudinal central section ofthe same;Fig. 4, a section, on line a' x of Fig. 2, showing the construction ofthe pulley, Figs. 5, 6, 7, detached views, to illustrate theconstruction and operation.

This invention relates to au improvementin iixtures for window-shades,designed for rolling the curtain from the top down or from the bottomup, as occasion may require; and the invention consists, first, inconstructing the halyard-plate so as to surround and work upon a ratchetas a bearing, the roll turning freely in one direction, but engaging atooth upon the ha-lyard-plate in the opposite direction, so as toprevent the ratchet from turning; second, in constructing the pulley soas to surround and work upon a ratchet as a bearing, so that the pulleyturns freely in one direction without ett'eet upon the roll, but turningin the opposite direction engages the ratchet, so that the turning ofthe pulley will cause a corresponding revolution of the roll.

The roll A, to which the window-shade is at tac-hed, may be of wood orother suitable material, the shade B attached thereto in any knownmanner. Upon each end of the roll a pulley, C, is attached, and aroundthis pulley a cord, N, is wound, one end of the cord rigidly secured atthe top of the window, as atl), and the other below, as at E, so that asthe roll moves up and down this stationary cord will cause the pulley torevolve. To raise or lower the roll a cord, n, is attached to ahalyard-plate, F, and a corresponding cord, b, to

u corresponding hal yard-plate upon the other end, the two cords broughttogether over a pulley at D, and to any suitable securing device, c, onthe windowframe; hence takin g hold of the two cords and drawing' downwill raise the roll and pulley, and loosing the two cords will allow thepulley and cord to drop. To this extent this fixture is not new.

ln operating, it is desirable to raise the shade without rolling, andalso that the curtain may be drawn down without lowering the roll. 'lodo this it is necessary that the pulley should revolve independent ofthe roll, but should engage the roll when running down, and that, inrising, the halya-rd-plate should en gage the roll, so that it will notrevolve with the pulley. To do this afriction upon the roll isnecessary, sufficient to counterbalanee the weight of the shade. leplace a disk, G, formed from sheet metal, of a concavo-eonvex form,against the end et' the roll, which is prevented from revolving with theroll by a square sleeve, d, and

through this sleeve the adjusting-screw is set, bearing the pulleyagainst the disk, so that, it' the pulley is held to prevent itsrolling, the disk is held accordingly, and the friction upon the end ofthe roll is su'ltieient to prevent the weight ofthe shade from turnintheroll. Onto this sleeve and next the disk G a flat collar, I, is placed,and next to this a ratchet, e. Over this ratchet the halyardplate F isplaced, the halyard-plate F bein g of the same thickness as, or a littleless than, the ratchet. The opening' through the halyard-platc thatallows it to set over the ratchet is of such size that the ratchet willturn freely therein, as denoted by the arrow in Fig. (i 5 but whenturning in the oppo site direction, as in Fig. 5, will engage atooth ornotch, n, formed in the opening. Outside this halyard-plate anothercollar, L, is placed, the diameter of the two collars being larger thanthe opening in the halyardplate, so that the two collars serve to retainthe halyard-plate in place, and yet allow its free working. Outside thiseollar, in a convenient position, a sec ond ratchet, f, is placed uponthe sleeve, as seen in Figs. 3 and 7, and over this ratchet, between thecollars m ym, the pulley is set, the opening through the pulley beingsimilar to that described in the halyard-plate, so that the pulley willrevolve in the direction of the arrow, free and without effect upon theratchet,

2 Maceo but, turning in the opposite direction, notches t, more or lessin nuinber, will engage one or niore ot the teeth in the ratchet, asdenoted in breken lines, Fig. 7, and when thus engaged thefriction-plate Gr will be turned with the pulley, and the roll alsoturned; hence, when drawing up on the cords a b to raise the roll, thepulley will revolve in the direction of the arrow and t'ree from theroll, and the shade will be raised bodily without rolling, and will beheld in any convenient position by the levice c or otherwise, and whenthus held, if the shade B be drawn down, by taking hold of the shade theroll must revolve. In order to prevent the pulley from ruiming down bysuch pulling, the ratchet c engages in the halyard plate, as seen inFig. 5. This brings the strain ot the pulling entirely upon thehalyard-plate and the cords attached. Then, it desired to wind the shadeupon the roll, loose the cords (I l) and allow the roll to fall, indoing which the pulley revolves in the opposite direction to thatdenoted by the arrow in Fig. 7, and engages the ratchet j" and causesthe roll to revolve and wind thc shade thereon as it descends. The otherratchet c at the saine time revolves, as denoted in Fig. (i, freelywithin the halyard-plate. Drawing upon the cords oy I) the pulleyrevolves, as denoted by the arrow in Fig. 7, and its revolving has noeiect upon the roll. The screw Ilt'ornisthebearing within the sleeve,upon which the roll turns. The frietiolrplate (i-lr may, by ineans ot'the screw, be pressed with greater or less force against the roll toincrease or diminish the friction.

The pulley (l is t'ornied sheet nieta-l struck into forni, as seen inFig. 3, joined at their center in the line z z, so as to make a grooveupon their periphery. The periphery or groove is corrugated, as seen insection in Fin'. 4, the corrugation being formed in each part by shapethe two parts. signed to prevent the on its cord.

Vile 'claim as our inveutiond l. The combination of the friction-plateG, the pulley and its ratchet, with the square or angular shaped sleeved, substantially as set forth.

2. rEhe combination of the ratchet fand the pulley C, the pulleyconstructed with teeth or notches t, corresponding to the teeth of theratchet, as specitied, so as to forni the bearing thevdies, which strikeup and This corrugation is def slipping of the pulley upon which thesaid pulley revolves freely in.

one direction and engages in the reverse direction, substantially asdescribed. f

3. In combination with the pulley and roll ol a curtain-fixture, thehalyard-plate l?, with the ratchet e within the said halyard-plate, thesaid plate F constructed with teeth or notches n, corresponding to theteeth of the ratchet, as specified, so as to turn fre-ely therein in onedirection and engaging in the other direction substantially as and forthe purpose set forth.

(l HAUNCE Y BUCKLEY. LODOXYI *K L. SAVYER.

(tnesses A. J. Trnnirs, ll. Snmrwm.

from two disks ot

